CSE Butter Knife

CSE Butter Knife is a Carl Schaper creation.

Carl Schaper is best known for his longboards, but his Butter Knife is second to none when it comes to his mini-tank designs.

“We have had so many guys come back so stoked on riding the board they originally bought for their daughter!” ~ Carl Schaper

Bottom: Soft roll to mid-V to double concave
Rider: Beginner – pro
Wave Type: 1-6ft

CSE Butter Knife Design

The CSE Butter Knife with its classic outlines, perfect performance longboard rockers and well-thought-out volumes is a winner across the board. Suitable for all abilities, surfers get to ride these as single fins in the smaller conditions and discover its nose riding potential. And when it gets a bit punchier, you can just slip in the side bites and you have a perfect riding board for just about all conditions. As a thruster, a Butter Knife is balanced and predictable. Pop in a quad set up and use a bucketload of speed and increased bite to your advantage.

CSE Butter Knife Fin set up

The CSE Butter Knife comes with a 4+1 fin configuration allowing you to get creative in your setup. Try a quad, thruster, or even a single fin. NSP positioned the Surf 10 fin box slightly further back on purpose, making a realistic thruster setup work out as well.

All Butter Knives come with FTU fin boxes and are compatible with Futures® Fins (fins not included).


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Size Chart

Length Width Thickness Volume Weight +/- 5%
8'0"21"2³/⁴"55 Liters4.73 Kg
8'6"21 ¹/²"2³/⁴"64.5 Liters5.34 Kg


Additional Information

Who’s the CSE Butter Knife for

Riders looking for a mini-mal with a deeper performance envelope are well-advised to check out the Butter Knife. With its classic outlines, perfect performance longboard rockers and thought-out volumes, the Butter Knife is a shape for riders of all abilities looking for a mid-length that works and performs on smaller days.

CSE Butter Knife Features

Shapers Union


Shaper’s Union

The Butter Knife is a Shaper’s Union creation, a collaboration between NSP and world-class shapers like Carl Schaper. Established to bring new energy and high-performance to the surf line-up, Shapers Union is NSP’s way to showcase the incredible skill and talent of some of the most accomplished shapers in the world.

Carl’s philosophy
“Keep it simple, stay neutral and make sure the boards are fast. Get the right board for the right guy for the right conditions.”

Residing on the island of Oahu, Carl Schaper operates from the legendary Sugar Mill, creating longboard shapes, guns and mini mals for surfing royalty from Hawaii and beyond. His knowledge of shaping and construction is an essential part of the Shaper’s Union DNA.

CSE Construction

Built with NSP’s Shaper’s Union Custom Surf Epoxy (CSE) layup, we came up with a unique glassing schedule for the Butter Knife,  instead of a one-size-fits-all technology. The boards come with a clear UV-stable resin and satin rub finish and combined with a CNC-cut EPS core, laminated with full 220g (8oz) biax glass + 4oz deck and 6oz bottom, a 4oz fin patch, a 6mm wood stringer, bottom carbon stringer and carbon-reinforced tail, giving you a durable, high-performance longboard with flex that feels light and responsive.

CSE Butter Knife Video

Butter Knife profile

CSE Butter Knife

CSE Butter Knife Action

CSE Butter Knife Testimonials

“This thing is mental!!!!! Wish a big comp on the sunny coast was going ahead….. this thing will blow minds!”
Paul Jonesy, Team Rider Australia

Bag details

Bag Name Dimensions Designed for
Board sock 8'0" 8'0" x stretchy 8'0"
Board sock 8'6" 8'6" x stretchy 8'6"
Surf day bag 8'6" 4mm 271 x 69 cm 8'0" and 8'6"
Surf travel bag 8'6" 8mm 271 x 69 cm 8'0" and 8'6"

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